diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/FilesManager.php b/workflow/engine/src/ProcessMaker/BusinessModel/FilesManager.php
index fc7205805..01df38d5a 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/FilesManager.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/FilesManager.php
@@ -62,7 +62,7 @@ class FilesManager
                     $sDirectory = PATH_DATA_PUBLIC . $sProcessUID . PATH_SEP . $sSubDirectory;
                     break;
                 default:
-                    throw (new \Exception( 'Invalid value specified for `path`. Expecting `templates` or `public`'));
+                    throw (new \Exception( 'Invalid value specified for path. Expecting templates or public'));
                     break;
             }
             \G::verifyPath($sDirectory, true);
@@ -147,7 +147,7 @@ class FilesManager
         try {
             $aData['prf_path'] = rtrim($aData['prf_path'], '/') . '/';
             if (!$aData['prf_filename']) {
-                throw (new \Exception( 'Invalid value specified for `prf_filename`.'));
+                throw (new \Exception( 'Invalid value specified for prf_filename.'));
             }
             $extention = strstr($aData['prf_filename'], '.');
             if (!$extention) {
@@ -162,7 +162,7 @@ class FilesManager
             }
             $sMainDirectory = current(explode("/", $aData['prf_path']));
             if ($sMainDirectory != 'public' && $sMainDirectory != 'templates') {
-                throw (new \Exception( 'Invalid value specified for `prf_path`. Expecting `templates/` or `public/`'));
+                throw (new \Exception( 'Invalid value specified for prf_path. Expecting templates/ or public/'));
             }
             if (strstr($aData['prf_path'],'/')) {
                 $sSubDirectory = substr($aData['prf_path'], strpos($aData['prf_path'], "/")+1) ;
@@ -329,7 +329,7 @@ class FilesManager
                 $rsCriteria->next();
             }
             if ($path == '') {
-                throw new \Exception('Invalid value specified for `prf_uid`.');
+                throw new \Exception('Invalid value specified for prf_uid.');
             }
             $sFile = end(explode("/",$path));
             $sPath = str_replace($sFile,'',$path);
@@ -398,7 +398,7 @@ class FilesManager
                 $rsCriteria->next();
             }
             if ($path == '') {
-                throw new \Exception('Invalid value specified for `prf_uid`.');
+                throw new \Exception('Invalid value specified for prf_uid.');
             }
             $sFile = end(explode("/",$path));
             $sPath = str_replace($sFile,'',$path);
@@ -440,7 +440,7 @@ class FilesManager
                 $rsCriteria->next();
             }
             if ($path == '') {
-                throw new \Exception('Invalid value specified for `prf_uid`.');
+                throw new \Exception('Invalid value specified for prf_uid.');
             }
             $sFile = end(explode("/",$path));
             $sPath = str_replace($sFile,'',$path);
@@ -456,7 +456,7 @@ class FilesManager
                 $oProcessMap->downloadFile($sProcessUID,$sMainDirectory,$sSubDirectory,$sFile);
                 die();
             } else {
-                throw (new \Exception( 'Invalid value specified for `path`.'));
+                throw (new \Exception( 'Invalid value specified for path.'));
             }
         } catch (Exception $e) {
             throw $e;
@@ -492,7 +492,7 @@ class FilesManager
             if (file_exists($sDirectory.$sDirToDelete)) {
                 \G::rm_dir($sDirectory.$sDirToDelete);
             } else {
-                throw (new \Exception( 'Invalid value specified for `path`.'));
+                throw (new \Exception( 'Invalid value specified for path.'));
             }
             $criteria = new \Criteria("workflow");
             $criteria->addSelectColumn(\ProcessFilesPeer::PRF_PATH);
diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/OutputDocument.php b/workflow/engine/src/ProcessMaker/BusinessModel/OutputDocument.php
index 5c08340a9..4a8981856 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/OutputDocument.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/OutputDocument.php
@@ -235,7 +235,7 @@ class OutputDocument
             if ($row == "print" || $row == "modify" || $row == "copy" || $row == "forms" || $row == "") {
                 $aData['out_doc_pdf_security_permissions'] = $aData['out_doc_pdf_security_permissions'];
             } else {
-                throw (new \Exception( 'Invalid value specified for `out_doc_pdf_security_permissions`'));
+                throw (new \Exception( 'Invalid value specified for out_doc_pdf_security_permissions'));
             }
         }
         try {
@@ -248,7 +248,7 @@ class OutputDocument
                 throw (new \Exception(str_replace(array("{0}", "{1}"), array($sProcessUID, "PROCESS"), "The UID \"{0}\" doesn't exist in table {1}")));
             }
             if ($aData["OUT_DOC_TITLE"]=="") {
-                throw (new \Exception( 'Invalid value specified for `out_doc_title`, can`t be null'));
+                throw (new \Exception( 'Invalid value specified for out_doc_title, can not be null'));
             }
             if (isset($aData["OUT_DOC_TITLE"]) && $this->existsTitle($sProcessUID, $aData["OUT_DOC_TITLE"])) {
                 throw (new \Exception(\G::LoadTranslation("ID_OUTPUT_NOT_SAVE")));
@@ -296,7 +296,7 @@ class OutputDocument
             if ($row == "print" || $row == "modify" || $row == "copy" || $row == "forms" || $row == "") {
                 $aData['out_doc_pdf_security_permissions'] = $aData['out_doc_pdf_security_permissions'];
             } else {
-                throw (new \Exception( 'Invalid value specified for `out_doc_pdf_security_permissions`'));
+                throw (new \Exception( 'Invalid value specified for out_doc_pdf_security_permissions'));
             }
         }
         try {
diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/ProcessSupervisor.php b/workflow/engine/src/ProcessMaker/BusinessModel/ProcessSupervisor.php
index a7d0bd9ed..518a848c6 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/ProcessSupervisor.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/ProcessSupervisor.php
@@ -89,7 +89,7 @@ class ProcessSupervisor
             $aResp = array();
             $oProcess = \ProcessUserPeer::retrieveByPK( $sPuUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `pu_uid`: '. $sPuUID .' does not correspond to a valid relation'));
+                throw (new \Exception( 'This id for pu_uid: '. $sPuUID .' does not correspond to a valid relation'));
             }
             // Groups
             $oCriteria = new \Criteria('workflow');
@@ -631,7 +631,7 @@ class ProcessSupervisor
     {
         $oTypeDynaform = \DynaformPeer::retrieveByPK($sDynUID);
         if (is_null( $oTypeDynaform )) {
-            throw (new \Exception( 'This id for `dyn_uid`: '. $sDynUID .' does not correspond to a registered Dynaform'));
+            throw (new \Exception( 'This id for dyn_uid: '. $sDynUID .' does not correspond to a registered Dynaform'));
         }
         $aResp = array();
         $sPuUIDT = array();
@@ -717,7 +717,7 @@ class ProcessSupervisor
     {
         $oTypeInputDocument= \InputDocumentPeer::retrieveByPK($sInputDocumentUID);
         if (is_null( $oTypeInputDocument )) {
-            throw (new \Exception( 'This id for `inp_doc_uid`: '. $sInputDocumentUID .' does not correspond to a registered InputDocument'));
+            throw (new \Exception( 'This id for inp_doc_uid: '. $sInputDocumentUID .' does not correspond to a registered InputDocument'));
         }
         $aResp = array();
         $sPuUIDT = array();
diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/ProjectUser.php b/workflow/engine/src/ProcessMaker/BusinessModel/ProjectUser.php
index 0c1880ca0..db858723b 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/ProjectUser.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/ProjectUser.php
@@ -19,7 +19,7 @@ class ProjectUser
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $aUsers = array();
             $sDelimiter = \DBAdapter::getStringDelimiter();
@@ -105,7 +105,7 @@ class ProjectUser
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $aUsers = array();
             $sDelimiter = \DBAdapter::getStringDelimiter();
@@ -168,11 +168,11 @@ class ProjectUser
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oUser = \UsersPeer::retrieveByPK($sUserUID);
             if (is_null($oUser)) {
-                throw (new \Exception( 'This id for `usr_uid`: '. $sUserUID .' does not correspond to a registered user'));
+                throw (new \Exception( 'This id for usr_uid: '. $sUserUID .' does not correspond to a registered user'));
             }
             $aUsers = array();
             \G::LoadClass( 'case' );
@@ -190,7 +190,7 @@ class ProjectUser
                 }
             }
             if (sizeof($aUsers) < 1) {
-                throw (new \Exception( 'This user `usr_uid`: '. $sUserUID .' does not have initial activities assigned in this project.'));
+                throw (new \Exception( 'This user usr_uid: '. $sUserUID .' does not have initial activities assigned in this project.'));
             }
             return $aUsers;
         } catch (Exception $e) {
@@ -214,7 +214,7 @@ class ProjectUser
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             /**
              * process_webEntryValidate
@@ -292,9 +292,9 @@ class ProjectUser
                     $userIsAssigned = \GroupUserPeer::doCount( $oCriteria );
                     if (! ($userIsAssigned >= 1)) {
                         if ($sTASKS) {
-                            throw (new \Exception( "The `usr_uid` `" . $sWS_USER . "` doesn't have the activity `act_uid` `" . $sTASKS . "` assigned"));
+                            throw (new \Exception( "The usr_uid: " . $sWS_USER . " doesn't have the activity act_uid: " . $sTASKS . " assigned"));
                         } else {
-                            throw (new \Exception( "The `usr_uid` `" . $sWS_USER . "` doesn't have an activity assigned"));
+                            throw (new \Exception( "The usr_uid: " . $sWS_USER . " doesn't have an activity assigned"));
                         }
                     }
                 }
diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/Task.php b/workflow/engine/src/ProcessMaker/BusinessModel/Task.php
index bab162bd8..2cf999702 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/Task.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/Task.php
@@ -732,11 +732,11 @@ class Task
             require_once (PATH_TRUNK . "workflow" . PATH_SEP . "engine" . PATH_SEP . "classes" . PATH_SEP . "model" . PATH_SEP . "GroupUser.php");
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
             $aUsers = array();
             $sDelimiter = \DBAdapter::getStringDelimiter();
@@ -849,14 +849,14 @@ class Task
             }
             if ($start) {
                 if ($start < 0) {
-                    throw (new \Exception( 'Invalid value specified for `start`.'));
+                    throw (new \Exception( 'Invalid value specified for start.'));
                 }
             } else {
                 $start = 0;
             }
             if (isset($limit)) {
                 if ($limit < 0) {
-                    throw (new \Exception( 'Invalid value specified for `limit`.'));
+                    throw (new \Exception( 'Invalid value specified for limit.'));
                 } else {
                     if ($limit == 0) {
                         return array();
@@ -894,11 +894,11 @@ class Task
             require_once (PATH_TRUNK . "workflow" . PATH_SEP . "engine" . PATH_SEP . "classes" . PATH_SEP . "model" . PATH_SEP . "GroupUser.php");
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
             $iType = 1;
             $aUsers = array();
@@ -1004,14 +1004,14 @@ class Task
             }
             if ($start) {
                 if ($start < 0) {
-                    throw (new \Exception( 'Invalid value specified for `start`.'));
+                    throw (new \Exception( 'Invalid value specified for start.'));
                 }
             } else {
                 $start = 0;
             }
             if (isset($limit)) {
                 if ($limit < 0) {
-                    throw (new \Exception( 'Invalid value specified for `limit`.'));
+                    throw (new \Exception( 'Invalid value specified for limit.'));
                 } else {
                     if ($limit == 0) {
                         return array();
@@ -1043,11 +1043,11 @@ class Task
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
             $iType = 1;
             $aUsers = array();
@@ -1179,11 +1179,11 @@ class Task
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
             $iType = 1;
             $iRelation = '';
@@ -1251,11 +1251,11 @@ class Task
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
             $iType = 1;
             $iRelation = '';
@@ -1303,11 +1303,11 @@ class Task
             require_once (PATH_TRUNK . "workflow" . PATH_SEP . "engine" . PATH_SEP . "classes" . PATH_SEP . "model" . PATH_SEP . "GroupUser.php");
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
             $aUsers = array();
             $sDelimiter = \DBAdapter::getStringDelimiter();
@@ -1420,14 +1420,14 @@ class Task
             }
             if ($start) {
                 if ($start < 0) {
-                    throw (new \Exception( 'Invalid value specified for `start`.'));
+                    throw (new \Exception( 'Invalid value specified for start.'));
                 }
             } else {
                 $start = 0;
             }
             if (isset($limit)) {
                 if ($limit < 0) {
-                    throw (new \Exception( 'Invalid value specified for `limit`.'));
+                    throw (new \Exception( 'Invalid value specified for limit.'));
                 } else {
                     if ($limit == 0) {
                         return array();
@@ -1466,11 +1466,11 @@ class Task
             $aUsers = array();
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
 
             $iType = 2;
@@ -1576,14 +1576,14 @@ class Task
             }
             if ($start) {
                 if ($start < 0) {
-                    throw (new \Exception( 'Invalid value specified for `start`.'));
+                    throw (new \Exception( 'Invalid value specified for start.'));
                 }
             } else {
                 $start = 0;
             }
             if (isset($limit)) {
                 if ($limit < 0) {
-                    throw (new \Exception( 'Invalid value specified for `limit`.'));
+                    throw (new \Exception( 'Invalid value specified for limit.'));
                 } else {
                     if ($limit == 0) {
                         return array();
@@ -1617,11 +1617,11 @@ class Task
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
             $iType = 2;
             $aUsers = array();
@@ -1753,11 +1753,11 @@ class Task
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
             $iType = 2;
             $iRelation = '';
@@ -1825,11 +1825,11 @@ class Task
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
             $iType = 2;
             $iRelation = '';
@@ -1952,11 +1952,11 @@ class Task
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
             $aUsers = array();
             $oTasks = new \Tasks();
@@ -2035,14 +2035,14 @@ class Task
             }
             if ($start) {
                 if ($start < 0) {
-                    throw (new \Exception( 'Invalid value specified for `start`.'));
+                    throw (new \Exception( 'Invalid value specified for start.'));
                 }
             } else {
                 $start = 0;
             }
             if (isset($limit)) {
                 if ($limit < 0) {
-                    throw (new \Exception( 'Invalid value specified for `limit`.'));
+                    throw (new \Exception( 'Invalid value specified for limit.'));
                 } else {
                     if ($limit == 0) {
                         return array();
@@ -2077,11 +2077,11 @@ class Task
         try {
             $oProcess = \ProcessPeer::retrieveByPK( $sProcessUID );
             if (is_null($oProcess)) {
-                throw (new \Exception( 'This id for `prj_uid`: '. $sProcessUID .' does not correspond to a registered process'));
+                throw (new \Exception( 'This id for prj_uid: '. $sProcessUID .' does not correspond to a registered process'));
             }
             $oActivity = \TaskPeer::retrieveByPK( $sTaskUID );
             if (is_null($oActivity)) {
-                throw (new \Exception( 'This id for `act_uid`: '. $sTaskUID .' does not correspond to a registered activity'));
+                throw (new \Exception( 'This id for act_uid: '. $sTaskUID .' does not correspond to a registered activity'));
             }
             $aUsers = array();
             $oTasks = new \Tasks();
@@ -2160,14 +2160,14 @@ class Task
             }
             if ($start) {
                 if ($start < 0) {
-                    throw (new \Exception( 'Invalid value specified for `start`.'));
+                    throw (new \Exception( 'Invalid value specified for start.'));
                 }
             } else {
                 $start = 0;
             }
             if (isset($limit)) {
                 if ($limit < 0) {
-                    throw (new \Exception( 'Invalid value specified for `limit`.'));
+                    throw (new \Exception( 'Invalid value specified for limit.'));
                 } else {
                     if ($limit == 0) {
                         return array();
diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/User.php b/workflow/engine/src/ProcessMaker/BusinessModel/User.php
index 266fde82d..9eabe5763 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/User.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/User.php
@@ -213,31 +213,31 @@ class User
             if ($form['USR_REPLACED_BY'] != '') {
                 $oReplacedBy = \UsersPeer::retrieveByPK($form['USR_REPLACED_BY']);
                 if (is_null($oReplacedBy)) {
-                    throw new \Exception('`usr_replaced_by`:'.$form['USR_REPLACED_BY'].' '.\G::LoadTranslation('ID_AUTHENTICATION_SOURCE_INVALID'));
+                    throw new \Exception('usr_replaced_by:'.$form['USR_REPLACED_BY'].' '.\G::LoadTranslation('ID_AUTHENTICATION_SOURCE_INVALID'));
                 }
             }
             if ($form['USR_COUNTRY'] != '') {
                 $oCountry = \IsoCountryPeer::retrieveByPK($form['USR_COUNTRY']);
                 if (is_null($oCountry)) {
-                    throw new \Exception('Invalid value for `usr_country`: '.$form['USR_COUNTRY']);
+                    throw new \Exception('Invalid value for usr_country: '.$form['USR_COUNTRY']);
                 }
             }
             if ($form['USR_CITY'] != '') {
                 $oCity = \IsoSubdivisionPeer::retrieveByPK($form['USR_COUNTRY'], $form['USR_CITY']);
                 if (is_null($oCity)) {
-                    throw new \Exception('Invalid value for `usr_city`: '.$form['USR_CITY']);
+                    throw new \Exception('Invalid value for usr_city: '.$form['USR_CITY']);
                 }
             }
             if ($form['USR_LOCATION'] != '') {
                 $oLocation = \IsoLocationPeer::retrieveByPK($form['USR_COUNTRY'], $form['USR_LOCATION']);
                 if (is_null($oLocation)) {
-                    throw new \Exception('Invalid value for `usr_location`: '.$form['USR_LOCATION']);
+                    throw new \Exception('Invalid value for usr_location: '.$form['USR_LOCATION']);
                 }
             }
             if ($form['USR_COUNTRY'] != '') {
                 $oReplacedBy = \IsoCountryPeer::retrieveByPK($form['USR_COUNTRY']);
                 if (is_null($oReplacedBy)) {
-                    throw new \Exception('Invalid value for `usr_country`: '.$form['USR_COUNTRY']);
+                    throw new \Exception('Invalid value for usr_country: '.$form['USR_COUNTRY']);
                 }
             }
             if (isset($arrayData['USR_UID'])) {
@@ -247,10 +247,10 @@ class User
             }
             $sConfirm = $this->testPassword($form['USR_NEW_PASS']);
             if ($sConfirm['STATUS'] != 1) {
-                throw new \Exception('`usr_new_pass`. '.$sConfirm['DESCRIPTION']);
+                throw new \Exception('usr_new_pass. '.$sConfirm['DESCRIPTION']);
             }
             if ($form['USR_NEW_PASS'] != $form['USR_CNF_PASS']) {
-                throw new \Exception('`usr_new_pass or usr_cnf_pass`. '.\G::LoadTranslation('ID_NEW_PASS_SAME_OLD_PASS'));
+                throw new \Exception('usr_new_pass or usr_cnf_pass. '.\G::LoadTranslation('ID_NEW_PASS_SAME_OLD_PASS'));
             }
             $form['USR_PASSWORD'] = md5($form['USR_NEW_PASS']);
             if (!isset($form['USR_CITY'])) {
@@ -266,45 +266,45 @@ class User
             $criteria->addSelectColumn(\UsersPeer::USR_USERNAME);
             $criteria->add(\UsersPeer::USR_USERNAME, utf8_encode($arrayData['USR_USERNAME']));
             if (\UsersPeer::doCount($criteria) > 0) {
-                throw new \Exception('`usr_username`. '.\G::LoadTranslation('ID_USERNAME_ALREADY_EXISTS', array('USER_ID' => $arrayData['USR_USERNAME'])));
+                throw new \Exception('usr_username. '.\G::LoadTranslation('ID_USERNAME_ALREADY_EXISTS', array('USER_ID' => $arrayData['USR_USERNAME'])));
             }
             if ($form['USR_USERNAME'] == '') {
-                throw new \Exception('`usr_name`. '.\G::LoadTranslation('ID_MSG_ERROR_USR_USERNAME'));
+                throw new \Exception('usr_name. '.\G::LoadTranslation('ID_MSG_ERROR_USR_USERNAME'));
             } else {
                 $aData['USR_USERNAME'] = $form['USR_USERNAME'];
             }
             $aData['USR_PASSWORD'] = $form['USR_PASSWORD'];
             if ($form['USR_FIRSTNAME'] == '') {
-                throw new \Exception('`usr_firstname`. '.\G::LoadTranslation('ID_MSG_ERROR_USR_FIRSTNAME'));
+                throw new \Exception('usr_firstname. '.\G::LoadTranslation('ID_MSG_ERROR_USR_FIRSTNAME'));
             } else {
                 $aData['USR_FIRSTNAME'] = $form['USR_FIRSTNAME'];
             }
             if ($form['USR_LASTNAME'] == '') {
-                throw new \Exception('`usr_lastname`. '.\G::LoadTranslation('ID_MSG_ERROR_USR_LASTNAME'));
+                throw new \Exception('usr_lastname. '.\G::LoadTranslation('ID_MSG_ERROR_USR_LASTNAME'));
             } else {
                 $aData['USR_LASTNAME'] = $form['USR_LASTNAME'];
             }
             if ($form['USR_EMAIL'] == '') {
-                throw new \Exception('Invalid value specified for `usr_email`, can`t be null.');
+                throw new \Exception('Invalid value specified for usr_email, can not be null.');
             } else {
                 if (!filter_var($form['USR_EMAIL'], FILTER_VALIDATE_EMAIL)) {
-                    throw new \Exception('`usr_email`. '.\G::LoadTranslation('ID_INCORRECT_EMAIL'));
+                    throw new \Exception('usr_email. '.\G::LoadTranslation('ID_INCORRECT_EMAIL'));
                 } else {
                     $aData['USR_EMAIL'] = $form['USR_EMAIL'];
                 }
             }
             if ($form['USR_DUE_DATE'] == '') {
-                throw new \Exception('`usr_due_date`. '.\G::LoadTranslation('ID_MSG_ERROR_DUE_DATE'));
+                throw new \Exception('usr_due_date. '.\G::LoadTranslation('ID_MSG_ERROR_DUE_DATE'));
             } else {
                 $dueDate = explode("-", $form['USR_DUE_DATE']);
                 if (ctype_digit($dueDate[0])) {
                     if (checkdate($dueDate[1], $dueDate[2], $dueDate[0]) == false) {
-                        throw new \Exception('`usr_due_date`. '.\G::LoadTranslation('ID_MSG_ERROR_DUE_DATE'));
+                        throw new \Exception('usr_due_date. '.\G::LoadTranslation('ID_MSG_ERROR_DUE_DATE'));
                     } else {
                         $aData['USR_DUE_DATE'] = $form['USR_DUE_DATE'];
                     }
                 } else {
-                    throw new \Exception('`usr_due_date`. '.\G::LoadTranslation('ID_MSG_ERROR_DUE_DATE'));
+                    throw new \Exception('usr_due_date. '.\G::LoadTranslation('ID_MSG_ERROR_DUE_DATE'));
                 }
             }
             $aData['USR_CREATE_DATE'] = date('Y-m-d H:i:s');
@@ -313,16 +313,16 @@ class User
             $aData['USR_AUTH_USER_DN'] = $form['USR_AUTH_USER_DN'];
             $statusWF = $form['USR_STATUS'];
             if ($form['USR_STATUS'] == '') {
-                throw new \Exception('Invalid value specified for `usr_status`, can`t be null');
+                throw new \Exception('Invalid value specified for usr_status, can not be null');
             } else {
                 if ($form['USR_STATUS'] == 'ACTIVE' || $form['USR_STATUS'] == 'INACTIVE' || $form['USR_STATUS'] == 'VACATION') {
                     $aData['USR_STATUS'] = $form['USR_STATUS'];
                 } else {
-                    throw new \Exception('`usr_status`. Invalid value for status field.');
+                    throw new \Exception('usr_status. Invalid value for status field.');
                 }
             }
             if ($form['USR_ROLE'] == '') {
-                throw new \Exception('Invalid value specified for `usr_role`, can`t be null');
+                throw new \Exception('Invalid value specified for usr_role, can not be null');
             } else {
                 require_once (PATH_RBAC_HOME . "engine" . PATH_SEP . "classes" . PATH_SEP . "model" . PATH_SEP . "Roles.php");
                 $oCriteria = new \Criteria('rbac');
@@ -333,7 +333,7 @@ class User
                 if ($oDataset->getRow()) {
                     $aData['USR_ROLE'] = $form['USR_ROLE'];
                 } else {
-                    throw new \Exception('`usr_role`. Invalid value for role field.');
+                    throw new \Exception('usr_role. Invalid value for role field.');
                 }
             }
             try {
@@ -398,13 +398,13 @@ class User
                 }
             }
             if ($countPermission != 1) {
-                throw new \Exception('This user: '.$usrLoggedUid. ', can`t update the data.');
+                throw new \Exception('This user: '.$usrLoggedUid. ', can not update the data.');
             }
             $criteria = new \Criteria();
             $criteria->addSelectColumn(\UsersPeer::USR_USERNAME);
             $criteria->add(\UsersPeer::USR_USERNAME, utf8_encode($arrayData['USR_USERNAME']));
             if (\UsersPeer::doCount($criteria) > 0) {
-                throw new \Exception('`usr_username`. '.\G::LoadTranslation('ID_USERNAME_ALREADY_EXISTS', array('USER_ID' => $arrayData['USR_USERNAME'])));
+                throw new \Exception('usr_username. '.\G::LoadTranslation('ID_USERNAME_ALREADY_EXISTS', array('USER_ID' => $arrayData['USR_USERNAME'])));
             }
             if (isset($usrUid)) {
                 $form['USR_UID'] = $usrUid;
@@ -427,7 +427,7 @@ class User
             if (isset($form['USR_PASSWORD'])) {
                 if ($form['USR_PASSWORD'] != '') {
                     if ($form['USR_NEW_PASS'] != $form['USR_CNF_PASS']) {
-                        throw new \Exception('`usr_new_pass or usr_cnf_pass`. '.\G::LoadTranslation('ID_NEW_PASS_SAME_OLD_PASS'));
+                        throw new \Exception('usr_new_pass or usr_cnf_pass. '.\G::LoadTranslation('ID_NEW_PASS_SAME_OLD_PASS'));
                     }
                     $aData['USR_PASSWORD'] = $form['USR_PASSWORD'];
                     require_once (PATH_TRUNK . "workflow" . PATH_SEP . "engine" . PATH_SEP . "classes" . PATH_SEP . "model" . PATH_SEP . "UsersProperties.php");
@@ -464,7 +464,7 @@ class User
                             }
                         }
                         $sDescription .= '' . \G::LoadTranslation('ID_PLEASE_CHANGE_PASSWORD_POLICY');
-                        throw new \Exception('`usr_new_pass or usr_cnf_pass`. '.$sDescription);
+                        throw new \Exception('usr_new_pass or usr_cnf_pass. '.$sDescription);
                     }
                     $aHistory = unserialize($aUserProperty['USR_PASSWORD_HISTORY']);
                     if (!is_array($aHistory)) {
@@ -487,7 +487,7 @@ class User
                             $sDescription = \G::LoadTranslation('ID_POLICY_ALERT') . ':<br /><br />';
                             $sDescription .= ' - ' . \G::LoadTranslation('PASSWORD_HISTORY') . ': ' . PPP_PASSWORD_HISTORY . '<br />';
                             $sDescription .= '<br />' . \G::LoadTranslation('ID_PLEASE_CHANGE_PASSWORD_POLICY') . '';
-                            throw new \Exception('`usr_new_pass or usr_cnf_pass`. '.$sDescription);
+                            throw new \Exception('usr_new_pass or usr_cnf_pass. '.$sDescription);
                         }
                         if (count($aHistory) >= PPP_PASSWORD_HISTORY) {
                             $sLastPassw = array_shift($aHistory);
@@ -508,7 +508,7 @@ class User
             }
             if ($form['USR_EMAIL'] != '') {
                 if (!filter_var($form['USR_EMAIL'], FILTER_VALIDATE_EMAIL)) {
-                    throw new \Exception('`usr_email`. '.\G::LoadTranslation('ID_INCORRECT_EMAIL'));
+                    throw new \Exception('usr_email. '.\G::LoadTranslation('ID_INCORRECT_EMAIL'));
                 } else {
                     $aData['USR_EMAIL'] = $form['USR_EMAIL'];
                 }
@@ -517,12 +517,12 @@ class User
                 $dueDate = explode("-", $form['USR_DUE_DATE']);
                 if (ctype_digit($dueDate[0])) {
                     if (checkdate($dueDate[1], $dueDate[2], $dueDate[0]) == false) {
-                        throw new \Exception('`usr_due_date`. '.\G::LoadTranslation('ID_MSG_ERROR_DUE_DATE'));
+                        throw new \Exception('usr_due_date. '.\G::LoadTranslation('ID_MSG_ERROR_DUE_DATE'));
                     } else {
                         $aData['USR_DUE_DATE'] = $form['USR_DUE_DATE'];
                     }
                 } else {
-                    throw new \Exception('`usr_due_date`. '.\G::LoadTranslation('ID_MSG_ERROR_DUE_DATE'));
+                    throw new \Exception('usr_due_date. '.\G::LoadTranslation('ID_MSG_ERROR_DUE_DATE'));
                 }
             }
             $aData['USR_UPDATE_DATE'] = date('Y-m-d H:i:s');
@@ -539,7 +539,7 @@ class User
                 if ($oDataset->getRow()) {
                     $aData['USR_ROLE'] = $form['USR_ROLE'];
                 } else {
-                    throw new \Exception('`usr_role`. Invalid value for field.');
+                    throw new \Exception('usr_role. Invalid value for field.');
                 }
                 $this->updateUser($aData, $form['USR_ROLE']);
             } else {
@@ -548,7 +548,7 @@ class User
             if ($form['USR_COUNTRY'] != '') {
                 $oReplacedBy = \IsoCountryPeer::retrieveByPK($form['USR_COUNTRY']);
                 if (is_null($oReplacedBy)) {
-                        throw new \Exception('Invalid value for `usr_country`: '.$form['USR_COUNTRY']);
+                        throw new \Exception('Invalid value for usr_country: '.$form['USR_COUNTRY']);
                 } else {
                     $aData['USR_COUNTRY'] = $form['USR_COUNTRY'];
                     $aData['USR_CITY'] = '';
@@ -558,7 +558,7 @@ class User
             if ($form['USR_CITY'] != '') {
                 $oCity = \IsoSubdivisionPeer::retrieveByPK($form['USR_COUNTRY'], $form['USR_CITY']);
                 if (is_null($oCity)) {
-                    throw new \Exception('Invalid value for `usr_city`: '.$form['USR_CITY']);
+                    throw new \Exception('Invalid value for usr_city: '.$form['USR_CITY']);
                 } else {
                     $aData['USR_CITY'] = $form['USR_CITY'];
                 }
@@ -566,7 +566,7 @@ class User
             if ($form['USR_LOCATION'] != '') {
                 $oLocation = \IsoLocationPeer::retrieveByPK($form['USR_COUNTRY'], $form['USR_LOCATION']);
                 if (is_null($oLocation)) {
-                        throw new \Exception('Invalid value for `usr_location`: '.$form['USR_LOCATION']);
+                        throw new \Exception('Invalid value for usr_location: '.$form['USR_LOCATION']);
                 } else {
                     $aData['USR_LOCATION'] = $form['USR_LOCATION'];
                 }
@@ -581,7 +581,7 @@ class User
             if ($form['USR_REPLACED_BY'] != '') {
                 $oReplacedBy = \UsersPeer::retrieveByPK($form['USR_REPLACED_BY']);
                 if (is_null($oReplacedBy)) {
-                    throw new \Exception('`usr_replaced_by`:'.$form['USR_REPLACED_BY'].' '.\G::LoadTranslation('ID_AUTHENTICATION_SOURCE_INVALID'));
+                    throw new \Exception('usr_replaced_by:'.$form['USR_REPLACED_BY'].' '.\G::LoadTranslation('ID_AUTHENTICATION_SOURCE_INVALID'));
                 } else {
                     $aData['USR_REPLACED_BY'] = $form['USR_REPLACED_BY'];
                 }
@@ -689,14 +689,14 @@ class User
             }
             if ($start) {
                 if ($start < 0) {
-                    throw (new \Exception( 'Invalid value specified for `start`.'));
+                    throw (new \Exception( 'Invalid value specified for start.'));
                 } else {
                     $oCriteria->setOffset($start);
                 }
             }
             if ($limit != '') {
                 if ($limit < 0) {
-                    throw (new \Exception( 'Invalid value specified for `limit`.'));
+                    throw (new \Exception( 'Invalid value specified for limit.'));
                 } else {
                     if ($limit == 0) {
                         return $aUserInfo;
@@ -734,7 +734,7 @@ class User
             $aUserInfo = array();
             $oUser = \UsersPeer::retrieveByPK($userUid);
             if (is_null($oUser)) {
-                throw (new \Exception( 'This id for `usr_uid`: '. $userUid .' does not correspond to a registered user'));
+                throw (new \Exception( 'This id for usr_uid: '. $userUid .' does not correspond to a registered user'));
             }
             require_once (PATH_TRUNK . "workflow" . PATH_SEP . "engine" . PATH_SEP . "classes" . PATH_SEP . "model" . PATH_SEP . "Users.php");
             $oCriteria = new \Criteria();